package com.example.demo.dao;

        import com.example.demo.bean.User;

        import java.util.List;

public interface UserMapper {//数据库访问接口类
    public User queryUser(User user);
    public User queryUser2(User user);
    public int updateUser(User user);
    public int insertUser(User user);
    public List<User> queryUserList(User user);
}